Anti-skid clamping jaw for hot stamping

Abstract

The utility model relates to the technical field of metal processing, in particular to an anti-skid gripper jaw for hot stamping. The device comprises a clamping table, a clamping mechanism, a cooling mechanism and a cooling pipe, wherein the clamping mechanism is arranged at the top of the clamping table; the cooling mechanism is arranged on the clamping mechanism; the cooling pipe is arranged on the cooling mechanism, a liquid inlet pipe is arranged at the bottom of the cooling pipe, and a liquid outlet pipe is arranged at the top of the cooling pipe. Through the arrangement of the cooling mechanism, the motor drives the spiral conveying plate to rotate so as to circularly convey cooling liquid, and the cooling liquid flows in the liquid inlet pipe, the cooling pipe and the liquid outlet pipe so as to circularly cool the clamping plate, so that heat can be quickly taken away, the temperature of the clamping jaw is controlled within a reasonable range, material degradation is obviously delayed, and the service life of the clamping jaw is prolonged. And the thickness of an oxide layer caused by high temperature can be reduced, surface damage is reduced, the service life of the clamping jaw is prolonged, meanwhile, the material hardness can be maintained, and the stable friction coefficient between the anti-skid teeth and a workpiece is ensured.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, and in particular to an anti-slip gripper used in hot stamping. Background Technology

[0002] Hot stamping is a process in which the original steel sheet is heated to above the austenite transformation temperature, and after its internal structure is completely converted into austenite, it is quickly transferred to the mold cavity for stamping. Under pressure, the austenite is converted into martensite by rapid cooling to obtain ultra-high strength parts. During hot stamping, the parts are often clamped and fixed by cylinders.

[0003] Chinese Patent Publication No. CN211101719U discloses a clamping device for hot stamping die inserts, including an indexing plate and a worktable. The worktable is fixedly mounted on the indexing plate, which includes a base, a support plate, a scale plate, and a disc. The base has lugs on both sides, which are connected to the support plate via rotating shafts. A scale plate is mounted on the support plate, and a connecting shaft is provided on the disc, passing through the scale plate and connecting to the support plate. The worktable is fixed on the disc. The vertical angle adjustment is achieved by hinged connection between the support plate on the indexing plate and the base, and the circumferential adjustment is achieved by the connection between the disc and the support plate. With the clamping device provided in this application, after the insert is fixed to the worktable, the angle of the insert can be changed as needed, allowing the cooling water channels of the insert to be machined using a conventional drilling machine. This saves processing costs, improves the utilization rate of the conventional drilling machine, and avoids resource waste.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: the existing anti-slip grippers used in hot stamping cannot cool the grippers, which makes the grippers prone to damage after holding high-temperature workpieces for a long time. At the same time, they cannot stably clamp workpieces of different sizes from all angles, thus affecting the processing efficiency and accuracy of the workpieces. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art that the clamping jaws cannot be cooled and that workpieces of different sizes cannot be stably clamped, and to propose an anti-slip clamping jaw for hot stamping.

[0006] The technical solution of this utility model: a non-slip clamping claw used in hot stamping, including a clamping platform; and further including:

[0007] The clamping mechanism is located on the top of the clamping table and is used to clamp workpieces of different sizes by moving synchronously from four directions.

[0008] A cooling mechanism is installed on the clamping mechanism to cool the clamped workpiece with circulating coolant.

[0009] The cooling pipe is installed on the cooling mechanism. The bottom of the cooling pipe has an inlet pipe and the top of the cooling pipe has an outlet pipe. The coolant enters the cooling pipe through the inlet pipe. The cooling pipe is S-shaped to extend the flow time of the coolant in the clamping mechanism. The coolant that has absorbed heat flows back into the cooling mechanism through the outlet pipe for reuse.

[0010] Preferably, the clamping mechanism includes a mounting plate, a support plate, and a synchronous clamping assembly;

[0011] A support plate is positioned on top of the clamping platform, and a mounting plate is positioned on top of the support plate.

[0012] The synchronous clamping assembly is mounted on the mounting plate and is used to clamp the workpiece synchronously from four directions.

[0013] Preferably, the synchronous clamping assembly includes a slide and a cylinder;

[0014] A slide is mounted on the mounting plate, and a cylinder is mounted on the side of the support plate. A push rod is mounted on the output end of the cylinder, and a push block is mounted on the end of the push rod away from the cylinder. A sliding member is mounted on the side of the push block, and a sliding plate is mounted on the side of the sliding member away from the push block. A connecting block is mounted on the side of the sliding plate away from the sliding member, and a clamping plate is mounted on the top of the connecting block. An L-shaped rod is mounted on the end of the sliding member, and a rotating plate is rotatably mounted on the end of the L-shaped rod away from the sliding member. A connecting shaft is rotatably mounted at the axis of the rotating plate, and the top of the connecting shaft is connected to the axis of the mounting plate.

[0015] Preferably, the cooling mechanism includes a circulation assembly and a conveying assembly;

[0016] The circulation assembly is located at the bottom of the clamping stage and is used to store coolant and provide circulation channels for it;

[0017] The delivery component is attached to the circulation component to drive the flow of coolant.

[0018] Preferably, the circulation assembly includes a reservoir, a connecting column, and a retaining ring;

[0019] The connecting column is located on the side of the clamping platform, the liquid storage tank is located at the bottom of the connecting column, the fixing ring is located on the outside of the cooling pipe, and the side of the fixing ring is connected to the inside of the clamping plate.

[0020] Preferably, the conveying assembly includes a motor, a fixed frame, a rotating shaft, and a gear.

[0021] The fixed frame is located on the outside of the liquid storage tank, the motor is located on the inside of the fixed frame, the rotating shaft is located at the output end of the motor, gear one is located at the end of the rotating shaft away from the motor, gear two is meshed on the side of gear one, a rotating tube is located at the shaft center of gear two, a spiral conveying plate is located on the inside of the rotating tube, and the end of the rotating tube is connected to the liquid inlet pipe.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects:

[0023] 1. Through the cooling mechanism, the motor drives the spiral conveyor plate to rotate, thereby circulating and transporting the coolant. The coolant flows in the inlet pipe, cooling pipe and outlet pipe to circulate and cool the clamping plate. This can quickly remove heat, control the temperature of the clamping jaws within a reasonable range, significantly delay material degradation, reduce the thickness of the oxide layer caused by high temperature, reduce surface damage, extend the service life of the clamping jaws, and maintain the hardness of the material to ensure the stability of the friction coefficient between the anti-slip teeth and the workpiece.

[0024] 2. Through the setting of the clamping mechanism, the cylinder drives the four clamping plates to move synchronously, thereby clamping workpieces of different sizes in all directions and stably. This can complete the positioning and fixing of the workpiece in one go, avoiding the accumulation of positioning errors caused by traditional step-by-step clamping, shortening the single-piece processing cycle, and is especially suitable for highly automated hot stamping production lines. At the same time, it makes the force on each part of the workpiece uniform, reduces residual stress, and improves the fatigue strength and dimensional stability of the product. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the clamping mechanism;

[0027] Figure 3 This is a schematic diagram of the bottom structure of the clamping mechanism;

[0028] Figure 4 This is a schematic diagram of the cooling mechanism;

[0029] Figure 5 for Figure 4 An enlarged diagram of A in the diagram.

[0030] Reference numerals: 1. Clamping platform; 201. Mounting plate; 202. Support plate; 203. Slide groove; 204. Rotating plate; 205. Connecting shaft; 206. Connecting block; 207. Clamping plate; 208. Cylinder; 209. Push rod; 210. Push block; 211. Sliding component; 212. L-shaped rod; 213. Sliding plate; 301. Liquid storage tank; 302. Connecting column; 303. Liquid inlet pipe; 304. Cooling pipe; 305. Liquid outlet pipe; 306. Fixing ring; 307. Motor; 308. Fixing frame; 309. Rotating shaft; 310. Gear one; 311. Gear two; 312. Rotating pipe; 313. Spiral conveyor plate. Detailed Implementation

[0031] Example 1

[0032] like Figures 1-3 As shown, the present invention proposes an anti-slip clamping claw for hot stamping, comprising a clamping platform 1, a clamping mechanism, a cooling mechanism, and a cooling pipe 304.

[0033] The clamping mechanism is located on the top of the clamping table 1 and is used to clamp workpieces of different sizes by moving synchronously from four directions.

[0034] The cooling mechanism is installed on the clamping mechanism and is used to cool the clamped workpiece with circulating coolant.

[0035] Cooling pipe 304 is installed on the cooling mechanism. A liquid inlet pipe 303 is installed at the bottom of the cooling pipe 304 and a liquid outlet pipe 305 is installed at the top of the cooling pipe 304. Coolant enters the cooling pipe 304 from the liquid inlet pipe 303. The cooling pipe 304 is S-shaped to prolong the flow time of the coolant in the clamping mechanism. After absorbing heat, the coolant flows back into the cooling mechanism through the liquid outlet pipe 305 for reuse.

[0036] The clamping mechanism includes a mounting plate 201, a support plate 202, and a synchronous clamping assembly; the support plate 202 is disposed on the top of the clamping table 1, and the mounting plate 201 is disposed on the top of the support plate 202; the synchronous clamping assembly is disposed on the mounting plate 201 and is used to clamp the workpiece synchronously from four directions. The synchronous clamping assembly includes a slide groove 203 and a cylinder 208. The slide groove 203 is mounted on the mounting plate 201, and the cylinder 208 is mounted on the side of the support plate 202. A push rod 209 is mounted at the output end of the cylinder 208. A push block 210 is mounted at the end of the push rod 209 away from the cylinder 208. A sliding member 211 is mounted on the side of the push block 210. A sliding plate 213 is mounted on the side of the sliding member 211 away from the push block 210. A connecting block 206 is mounted on the side of the sliding plate 213 away from the sliding member 211. A clamping plate 207 is mounted on the top of the connecting block 206. The clamping plate 207 has multiple protrusions to increase friction and enhance the gripping effect on the workpiece, thereby improving clamping stability. An L-shaped rod 212 is mounted at the end of the sliding member 211. A rotating plate 204 is rotatably mounted at the end away from the sliding member 211. A connecting shaft 205 is rotatably mounted at the axis of the rotating plate 204. The top of the connecting shaft 205 is connected to the axis of the mounting plate 201. The rotating plate 204 is square. Four L-shaped rods 212 are arranged in a ring around the rotating plate 204. During the rotation of the rotating plate 204, the other three L-shaped rods 212 are rotated simultaneously, thus moving in four directions at the same time. The cylinder 208 drives the push rod 209 to move. The push rod 209 drives the sliding member 211 to move through the push block 210. When the sliding member 211 moves, it drives the rotating plate 204 to rotate through the L-shaped rods 212, thereby driving the connecting block 206 to slide in the slide groove 203. The four connecting blocks 206 drive the four clamping plates 207 to move synchronously.

[0037] Example 2

[0038] like Figures 4-5 As shown, this utility model proposes an anti-slip gripper for hot stamping. Compared with Embodiment 1, this embodiment details the structure of the cooling mechanism.

[0039] The cooling mechanism includes a circulation assembly and a conveying assembly. The circulation assembly is located at the bottom of the clamping platform 1 and is used to store coolant and provide a circulation channel for it. The conveying assembly is attached to the circulation assembly and is used to drive the flow of coolant. The circulation assembly includes a reservoir 301, a connecting column 302, and a retaining ring 306. The connecting column 302 is located on the side of the clamping platform 1, the reservoir 301 is located at the bottom of the connecting column 302, and the retaining ring 306 is located on the outside of the cooling pipe 304, with the side of the retaining ring 306 connected to the inside of the clamping plate 207. The conveying assembly includes a motor 307, a fixed frame 308, a rotating shaft 309, and a gear 310. The fixed frame 308 is located outside the liquid storage tank 301, the motor 307 is located inside the fixed frame 308, the rotating shaft 309 is located at the output end of the motor 307, and the gear 310 is located at the end of the rotating shaft 309 away from the motor 307. A gear 311 meshes with the side of the gear 310. A rotating tube 312 is located at the axis of the gear 311, and a spiral conveying plate 313 is located inside the rotating tube 312. The end of the rotating tube 312 is connected to the inlet pipe 303. When the motor 307 is started, the motor 307... The rotating shaft 309 drives the first gear 310 to rotate, the first gear 310 drives the second gear 311 to rotate, the second gear 311 drives the rotating tube 312 to rotate, the rotating tube 312 drives the spiral conveyor plate 313 to rotate, the spiral conveyor plate 313 conveys the coolant, so that the coolant flows in the inlet pipe 303, and then cools the workpiece through the cooling pipe 304, and finally flows back to the storage tank 301 from the outlet pipe 305. Since the coolant that has absorbed heat is discharged at the top of the storage tank 301, and the top of the storage tank 301 is set to an open state, the coolant at the top can dissipate heat for subsequent circulation.

[0040] In summary, when using this utility model, coolant is poured into the storage tank 301, the workpiece is placed on top of the mounting plate 201, and then the motor 307 and cylinder 208 are started. The cylinder 208 drives the push rod 209 to move, and the push rod 209 drives the sliding member 211 to move through the push block 210. When the sliding member 211 moves, it drives the rotating plate 204 to rotate through the L-shaped rod 212, so that the rotating plate 204 drives the other three L-shaped rods 212 to rotate, thereby driving the other three sliding members 211 connected to the L-shaped rods 212 to slide in the slide groove 203 through the sliding plate 213 and the connecting block 206. The four connecting blocks 206 respectively drive the four clamps The holding plate 207 moves synchronously. When it contacts the workpiece, the cylinder 208 stops working to clamp the workpiece. Then, during the hot stamping process, the motor 307 drives the gear 1 310 to rotate through the rotating shaft 309. The gear 1 310 drives the gear 2 311 to rotate. The gear 2 311 drives the rotating tube 312 to rotate. The rotating tube 312 drives the spiral conveyor plate 313 to rotate. The spiral conveyor plate 313 conveys the coolant, so that the coolant flows in the inlet pipe 303 and then cools the workpiece through the cooling pipe 304. Finally, it flows back to the storage tank 301 from the outlet pipe 305, thus circulating and cooling the workpiece.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A non-slip gripper for hot stamping, comprising a gripping table (1); characterized in that, Also includes: The clamping mechanism is located on the top of the clamping table (1) and is used to clamp workpieces of different sizes by moving synchronously from four directions. A cooling mechanism is installed on the clamping mechanism to cool the clamped workpiece with circulating coolant. And a cooling pipe (304), which is installed on the cooling mechanism. The bottom of the cooling pipe (304) is provided with an inlet pipe (303) and the top of the cooling pipe (304) is provided with an outlet pipe (305). The coolant enters the cooling pipe (304) from the inlet pipe (303). The cooling pipe (304) is S-shaped to prolong the time the coolant flows in the clamping mechanism. The coolant that has absorbed heat flows back into the cooling mechanism through the outlet pipe (305) for reuse.

2. The anti-slip gripper used in hot stamping according to claim 1, characterized in that, The clamping mechanism includes a mounting plate (201), a support plate (202), and a synchronous clamping assembly; A support plate (202) is disposed on the top of the clamping table (1), and a mounting plate (201) is disposed on the top of the support plate (202); The synchronous clamping assembly is mounted on the mounting plate (201) and is used to clamp the workpiece synchronously from four directions.

3. The anti-slip gripper used in hot stamping according to claim 2, characterized in that, The synchronous clamping assembly includes a slide (203) and a cylinder (208); A slide groove (203) is provided on the mounting plate (201), and a cylinder (208) is provided on the side of the support plate (202). A push rod (209) is provided at the output end of the cylinder (208). A push block (210) is provided at the end of the push rod (209) away from the cylinder (208). A sliding member (211) is provided on the side of the push block (210). A sliding plate (213) is provided on the side of the sliding member (211) away from the push block (210). The sliding plate (213) is located away from the side of the push block (210). A connecting block (206) is provided on one side away from the sliding member (211). A clamping plate (207) is provided on the top of the connecting block (206). An L-shaped rod (212) is provided at the end of the sliding member (211). A rotating plate (204) is rotatably provided at the end of the L-shaped rod (212) away from the sliding member (211). A connecting shaft (205) is rotatably provided at the axis of the rotating plate (204). The top of the connecting shaft (205) is connected to the axis of the mounting plate (201).

4. The anti-slip gripper used in hot stamping according to claim 3, characterized in that, The cooling mechanism includes a circulation assembly and a conveying assembly; The circulation assembly is located at the bottom of the clamping stage (1) and is used to store coolant and provide circulation channels for it; The delivery component is attached to the circulation component to drive the flow of coolant.

5. The anti-slip gripper used in hot stamping according to claim 4, characterized in that, The circulation assembly includes a reservoir (301), a connecting column (302), and a retaining ring (306); The connecting column (302) is located on the side of the clamping platform (1), the liquid storage tank (301) is located at the bottom of the connecting column (302), the fixing ring (306) is located on the outside of the cooling pipe (304), and the side of the fixing ring (306) is connected to the inside of the clamping plate (207).

6. The anti-slip gripper for hot stamping according to claim 5, characterized in that, The conveying assembly includes a motor (307), a fixed frame (308), a rotating shaft (309), and a gear (310); A fixed frame (308) is located on the outside of the liquid storage tank (301), a motor (307) is located on the inside of the fixed frame (308), a rotating shaft (309) is located at the output end of the motor (307), a gear one (310) is located at the end of the rotating shaft (309) away from the motor (307), a gear two (311) meshes with the side of the gear one (310), a rotating tube (312) is located at the shaft center of the gear two (311), a spiral conveying plate (313) is located on the inside of the rotating tube (312), and the end of the rotating tube (312) is connected to the liquid inlet pipe (303).

Images